When possible an existing chimney is used to run a new flue but.
Direct vent gas fireplace flue.
018 galvanized steel outer wall.
Directvent pro is a unitized coaxial concentric venting system designed for use with direct vent gas or propane stoves heaters and fireplaces.
The vent termination of a direct vent application must terminate at least 12 inches from any opening through which flue gases may enter a building door window or gravity air inlet.
It s basically the venting system of the fireplace composed of a dual walled pipe or a pipe within another pipe.
Duluth forge ventless linear wall gas fireplace 26 000 btu t stat model df300l 3 3 out of 5 stars 25 majestic quartz quartz32in direct vent natural gas burning fireplace with intellifire ignition 32n.
Materials and construction 020 aluminum inner wall.
Painted outer walls made of laserwelded 018 galvalume steel.